331324132321 has 16 divisors (see below), whose sum is σ = 407887933824. Its totient is φ = 262079460864.

The previous prime is 331324132267. The next prime is 331324132339. The reversal of 331324132321 is 123231423133.

It is not a de Polignac number, because 331324132321 - 2²⁷ = 331189914593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331324132321.

It is not an unprimeable number, because it can be changed into a prime (331324132021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107056 + ... + 821041.

It is an arithmetic number, because the mean of its divisors is an integer number (25492995864).

Almost surely, 2^331324132321 is an apocalyptic number.

It is an amenable number.

331324132321 is a deficient number, since it is larger than the sum of its proper divisors (76563801503).

331324132321 is a wasteful number, since it uses less digits than its factorization.

331324132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932040.

The product of its digits is 7776, while the sum is 28.

Adding to 331324132321 its reverse (123231423133), we get a palindrome (454555555454).

The spelling of 331324132321 in words is "three hundred thirty-one billion, three hundred twenty-four million, one hundred thirty-two thousand, three hundred twenty-one".